搜题，就来5TiKU.com题库【问题】 The days ____ you could travel without a passport are a thing of the past.·iwhich·owhich ·of which ·at which
The days ____ you could travel without a passport are a thing of the past.·iwhich·owhich ·of which ·at which
正确答案：单选题·in which
题目解析：本题出自佳木斯大学，佳木斯大学语言治疗学，由丰阳塔题库搜集整理。
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